Gain Control - JAI SW-4000Q-SFP User Manual

Gain Control

The following gain functions are available on the camera.
• Analog base gain
• Digital gain
■ Analog base gain
Analog base gain (ABG) is gain that is performed to the analog video signal output from the
sensor. The gain steps can be configured to one of three levels (0 dB, 6 dB, 12 dB).
■ Two digital gain control modes
Two digital gain control modes are available; a mode where you adjust the master gain and
then perform fine adjustment for R, B and NIR (Master Mode), and a mode where R, G, B
and NIR gain are adjusted individually (Individual Mode).
・Master Mode
Set [Individual Gain Mode] to [Off], and adjust the gain by configuring the following four
items.
Digital All
Digital Red
Digital Blue
Digital NIR
・Individual Mode
Set [Individual Gain Mode] to [On], and adjust the gain by configuring the following four
items.
Digital Green
Digital Red
Digital Blue
Digital NIR
The following two gain values are added together for the total gain value.
Total Gain = Analog Base Gain (dB) + Digital Gain (dB)
*) In the IndividualGainMode, BalanceWhiteAuto cannot be set automatically.
x 1 ～ x 32 ( 0dB ～ 30dB)
x 0.63 ～ x 4 (-4dB ～ 12dB)
x 0.63 ～ x 4 (-4dB ～ 12dB)
x 0.63 ～ x 4 (-4dB ～ 12dB)
x 1 ～ x 64 (0dB ～ 36dB)
x 1 ～ x 64 (0dB ～ 36dB)
x 1 ～ x 64 (0dB ～ 36dB)
x 1 ～ x 64 (0dB ～ 36dB)
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SW-4000Q-SFP